$KRC
Kilroy Realty Corp Stock $krc

$krc Overview Financials Valuation SEC Filings Company Website

2016 Q4 Form 10-K Financial Statement

#000102599618000107 Filed on February 13, 2018

Income Statement

Concept	2016 Q4	2016 Q3	2016 Q2
Revenue	$168.6M	$168.3M	$160.1M
YoY Change	14.4%	18.93%	9.51%
Cost Of Revenue	$45.50M	$45.50M	$43.80M
YoY Change	11.52%	14.9%	9.23%
Gross Profit	$123.2M	$122.9M	$116.3M
YoY Change	15.46%	20.61%	9.61%
Gross Profit Margin	73.05%	73.0%	72.63%
Selling, General & Admin	$16.10M	$13.50M	$14.00M
YoY Change	30.89%	25.0%	10.24%
% of Gross Profit	13.07%	10.98%	12.04%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$56.70M	$56.70M	$53.40M
YoY Change	9.67%	14.55%	3.49%
% of Gross Profit	46.02%	46.14%	45.92%
Operating Expenses	$72.90M	$115.8M	$111.9M
YoY Change	13.91%	16.01%	6.84%
Operating Profit	$50.30M	$7.053M	$4.427M
YoY Change	17.8%	245.4%	218.95%
Interest Expense	-$14.00M	$14.98M	$14.38M
YoY Change	6.87%	16.83%	-3.23%
% of Operating Profit	-27.83%	212.34%	324.92%
Other Income/Expense, Net		-$14.44M	-$14.07M
YoY Change		6.85%	-1.95%
Pretax Income	$35.40M	$56.40M	$33.90M
YoY Change	20.82%	-47.14%	-42.15%
Income Tax
% Of Pretax Income
Net Earnings	$32.74M	$53.90M	$32.85M
YoY Change	14.33%	-48.55%	-42.87%
Net Earnings / Revenue	19.41%	32.01%	20.51%
Basic Earnings Per Share	$0.29	$0.54	$0.32
Diluted Earnings Per Share	$0.29	$0.54	$0.31
COMMON SHARES
Basic Shares Outstanding	92.27M shares	92.23M shares	92.21M shares
Diluted Shares Outstanding		92.92M shares	92.82M shares

Balance Sheet

Concept	2016 Q4	2016 Q3	2016 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$193.0M	$251.0M	$26.00M
YoY Change	238.6%	-55.81%	-7.14%
Cash & Equivalents	$193.4M	$250.5M	$26.33M
Short-Term Investments
Other Short-Term Assets	$71.00M	$61.00M	$59.00M
YoY Change	162.96%	165.22%	90.32%
Inventory
Prepaid Expenses
Receivables	$13.46M	$9.709M	$10.11M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$496.0M	$534.0M	$303.0M
YoY Change	74.04%	-32.06%	24.18%
LONG-TERM ASSETS
Property, Plant & Equipment	$5.921B	$5.537B	$5.499B
YoY Change	11.0%	3.42%	6.82%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$15.00M	$14.00M	$13.00M
YoY Change	15.38%	7.69%	-7.14%
Other Assets	$274.0M	$248.0M	$483.0M
YoY Change	-7.12%	24.0%	72.5%
Total Long-Term Assets	$6.211B	$5.798B	$5.995B
YoY Change	10.09%	4.15%	10.15%
TOTAL ASSETS
Total Short-Term Assets	$496.0M	$534.0M	$303.0M
Total Long-Term Assets	$6.211B	$5.798B	$5.995B
Total Assets	$6.707B	$6.332B	$6.298B
YoY Change	13.16%	-0.33%	10.75%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$202.0M	$252.0M	$211.0M
YoY Change	-17.89%	0.8%	6.03%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$424.0M	$290.0M	$249.0M
YoY Change	50.89%	1.75%	6.87%
LONG-TERM LIABILITIES
Long-Term Debt	$2.320B	$2.217B	$2.439B
YoY Change	4.27%	-16.56%	3.22%
Other Long-Term Liabilities	$202.0M	$183.0M	$183.0M
YoY Change	9.19%	5.17%	2.81%
Total Long-Term Liabilities	$2.522B	$2.400B	$2.622B
YoY Change	4.65%	-15.22%	3.19%
TOTAL LIABILITIES
Total Short-Term Liabilities	$424.0M	$290.0M	$249.0M
Total Long-Term Liabilities	$2.522B	$2.400B	$2.622B
Total Liabilities	$2.947B	$2.690B	$2.872B
YoY Change	9.49%	-15.43%	1.33%
SHAREHOLDERS EQUITY
Retained Earnings	-$108.0M	$78.11M	$62.65M
YoY Change	53.71%
Common Stock	$932.0K	$923.0K	$923.0K
YoY Change	0.98%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$3.543B	$3.463B	$3.330B
YoY Change
Total Liabilities & Shareholders Equity	$6.707B	$6.332B	$6.298B
YoY Change	13.16%	-0.33%	10.75%

Cashflow Statement

Concept	2016 Q4	2016 Q3	2016 Q2
OPERATING ACTIVITIES
Net Income	$32.74M	$53.90M	$32.85M
YoY Change	14.33%	-48.55%	-42.87%
Depreciation, Depletion And Amortization	$56.70M	$56.70M	$53.40M
YoY Change	9.67%	14.55%	3.49%
Cash From Operating Activities	$92.50M	$115.0M	$59.40M
YoY Change	33.29%	34.03%	-3.88%
INVESTING ACTIVITIES
Capital Expenditures	-$497.0M	-$76.70M	-$193.4M
YoY Change	250.99%	-63.79%	40.25%
Acquisitions
YoY Change
Other Investing Activities	-$15.10M	$48.40M	$20.20M
YoY Change	-74.41%	-69.79%	-84.47%
Cash From Investing Activities	-$512.0M	-$28.30M	-$173.3M
YoY Change	155.36%	-45.26%	2150.65%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	361.7M	-71.10M	106.0M
YoY Change	-179.55%	-114.06%	-239.29%
NET CHANGE
Cash From Operating Activities	92.50M	115.0M	59.40M
Cash From Investing Activities	-512.0M	-28.30M	-173.3M
Cash From Financing Activities	361.7M	-71.10M	106.0M
Net Change In Cash	-57.80M	15.60M	-7.900M
YoY Change	-90.13%	-97.11%	-64.09%
FREE CASH FLOW
Cash From Operating Activities	$92.50M	$115.0M	$59.40M
Capital Expenditures	-$497.0M	-$76.70M	-$193.4M
Free Cash Flow	$589.5M	$191.7M	$252.8M
YoY Change	179.38%	-35.58%	26.59%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2017	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2017
CY2017	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2017	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q4
CY2016	krc	Acquired Finitelived Intangible Liabilities Weighted Average Useful Life AcquiredFinitelivedIntangibleLiabilitiesWeightedAverageUsefulLife	P8Y4M24D
CY2016Q4	krc	Acquisition Related Intangible Liabilities Net AcquisitionRelatedIntangibleLiabilitiesNet	41578000	USD
CY2017	krc	Defined Contribution Plan Requisite Service Period DefinedContributionPlanRequisiteServicePeriod	P3M
CY2017Q4	krc	Acquisition Related Intangible Liabilities Net AcquisitionRelatedIntangibleLiabilitiesNet	30639000	USD
CY2015	krc	Dividends And Distributions Paid To Preferred Stockholders And Preferred Unitholders DividendsAndDistributionsPaidToPreferredStockholdersAndPreferredUnitholders	13250000	USD
CY2017	krc	Annual Ground Lease Rental Obligations Maximum AnnualGroundLeaseRentalObligationsMaximum	1000000	USD
CY2015Q3	krc	At Market Stock Aggregate Gross Sales Priceof Common Stock AtMarketStockAggregateGrossSalesPriceofCommonStock	249800000	USD
CY2015	krc	Business Acquisition Acquisition Related Costs Capitalized BusinessAcquisitionAcquisitionRelatedCostsCapitalized	1100000	USD
CY2016	krc	Business Acquisition Acquisition Related Costs Capitalized BusinessAcquisitionAcquisitionRelatedCostsCapitalized	500000	USD
CY2017	krc	Business Acquisition Acquisition Related Costs Capitalized BusinessAcquisitionAcquisitionRelatedCostsCapitalized	4600000	USD
CY2017	krc	Ground Lease Minimum Rent Increase Percentage Of Annual Percentage Rent GroundLeaseMinimumRentIncreasePercentageOfAnnualPercentageRent	0.50
CY2017	krc	Ground Lease Minimum Rent Increase Percentageof Annual Percentage Rent Two GroundLeaseMinimumRentIncreasePercentageofAnnualPercentageRentTwo	0.6
CY2017	krc	Ground Lease Minimum Rent Increase Period Of Increase GroundLeaseMinimumRentIncreasePeriodOfIncrease	P5Y
CY2016Q4	krc	Business Combination Recognized Identifiable Assets Acquiredand Liabilities Assumed Deferred Revenue And Acquisition Related Intangible Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedDeferredRevenueAndAcquisitionRelatedIntangibleAssets	18050000	USD
CY2017Q4	krc	Capital Gains Federal Statutory Tax Rate Percent CapitalGainsFederalStatutoryTaxRatePercent	0.2
CY2015	krc	Common Stockholders And Unitholders Dividends And Distributions Declared But Not Paid CommonStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid	33336000	USD
CY2017	krc	Company Annual Taxable Income Distribution CompanyAnnualTaxableIncomeDistribution	1.0
CY2007	krc	Deferred Compensation Arrangement With Individual Employer Contribution Percent DeferredCompensationArrangementWithIndividualEmployerContributionPercent	0.1
CY2007	krc	Deferred Compensation Directors Fees And Employee Bonuses Percent DeferredCompensationDirectorsFeesAndEmployeeBonusesPercent	1
CY2017	dei	Document Period End Date DocumentPeriodEndDate	2017-12-31
CY2017	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2017Q2	dei	Entity Public Float EntityPublicFloat	7367936410	USD
CY2017	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2017	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2007	krc	Deferred Compensation Employee Salary Percent DeferredCompensationEmployeeSalaryPercent	0.7
CY2017	krc	Defined Contribution Plan Employer Matching Contribution Per Participant Dollar DefinedContributionPlanEmployerMatchingContributionPerParticipantDollar	0.50	USD
CY2017	krc	Ground Lease Minimum Rent Increase Periodof Increase Two GroundLeaseMinimumRentIncreasePeriodofIncreaseTwo	P10Y
CY2015	krc	Income Lossfromcontinuingoperationsbeforegainonsaleofrealestate IncomeLossfromcontinuingoperationsbeforegainonsaleofrealestate	111538000	USD
CY2016	krc	Income Lossfromcontinuingoperationsbeforegainonsaleofrealestate IncomeLossfromcontinuingoperationsbeforegainonsaleofrealestate	139791000	USD
CY2017	krc	Income Lossfromcontinuingoperationsbeforegainonsaleofrealestate IncomeLossfromcontinuingoperationsbeforegainonsaleofrealestate	140659000	USD
CY2015	krc	Interest Income And Other Net Investment Gain Loss InterestIncomeAndOtherNetInvestmentGainLoss	243000	USD
CY2016	krc	Interest Income And Other Net Investment Gain Loss InterestIncomeAndOtherNetInvestmentGainLoss	1764000	USD
CY2017	krc	Interest Income And Other Net Investment Gain Loss InterestIncomeAndOtherNetInvestmentGainLoss	5503000	USD
CY2015	krc	Issuanceof Note Receivable IssuanceofNoteReceivable	3000000	USD
CY2016	krc	Issuanceof Note Receivable IssuanceofNoteReceivable	16100000	USD
CY2017	krc	Issuanceof Note Receivable IssuanceofNoteReceivable	0	USD
CY2015	krc	Net Income Loss Attributableto Noncontrolling Interestin Consolidated Subsidiary NetIncomeLossAttributabletoNoncontrollingInterestinConsolidatedSubsidiary	184000	USD
CY2016	krc	Net Income Loss Attributableto Noncontrolling Interestin Consolidated Subsidiary NetIncomeLossAttributabletoNoncontrollingInterestinConsolidatedSubsidiary	3375000	USD
CY2017	krc	Common Stockholders And Unitholders Dividends And Distributions Declared But Not Paid CommonStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid	43448000	USD
CY2017	dei	Document Type DocumentType	10-K
CY2016	krc	Provision For Doubtful Accounts Including Discontinued Operations ProvisionForDoubtfulAccountsIncludingDiscontinuedOperations	0	USD
CY2017	krc	Provision For Doubtful Accounts Including Discontinued Operations ProvisionForDoubtfulAccountsIncludingDiscontinuedOperations	3269000	USD
CY2017Q4	krc	Advance Rent Including Tenant Security Deposits AdvanceRentIncludingTenantSecurityDeposits	56484000	USD
CY2017Q4	krc	Allowance For Deferred Rent Receivables AllowanceForDeferredRentReceivables	3238000	USD
CY2016	krc	Common Stockholders And Unitholders Dividends And Distributions Declared But Not Paid CommonStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid	220650000	USD
CY2016Q4	krc	Deferred Leasing Costs And Acquisition Related Intangible Assets Net DeferredLeasingCostsAndAcquisitionRelatedIntangibleAssetsNet	208368000	USD
CY2017Q4	krc	Deferred Leasing Costs And Acquisition Related Intangible Assets Net DeferredLeasingCostsAndAcquisitionRelatedIntangibleAssetsNet	183728000	USD
CY2017Q4	krc	Deferred Rent Receivables Gross DeferredRentReceivablesGross	249629000	USD
CY2016Q4	krc	Deferred Revenue And Acquisition Related Intangible Liabilities DeferredRevenueAndAcquisitionRelatedIntangibleLiabilities	150360000	USD
CY2017Q4	krc	Deferred Revenue And Acquisition Related Intangible Liabilities DeferredRevenueAndAcquisitionRelatedIntangibleLiabilities	145890000	USD
CY2016	krc	Dividends And Distributions Paid To Preferred Stockholders And Preferred Unitholders DividendsAndDistributionsPaidToPreferredStockholdersAndPreferredUnitholders	13250000	USD
CY2017	krc	Dividends And Distributions Paid To Preferred Stockholders And Preferred Unitholders DividendsAndDistributionsPaidToPreferredStockholdersAndPreferredUnitholders	7409000	USD
CY2017	krc	Lease Up Properties Maximum Stabilized Occupacy Percentage LeaseUpPropertiesMaximumStabilizedOccupacyPercentage	0.95
CY2016	krc	Noncash Amortization Of Deferred Revenue Related To Tenant Funded Tenant Improvements NoncashAmortizationOfDeferredRevenueRelatedToTenantFundedTenantImprovements	13244000	USD
CY2017	krc	Noncash Amortization Of Deferred Revenue Related To Tenant Funded Tenant Improvements NoncashAmortizationOfDeferredRevenueRelatedToTenantFundedTenantImprovements	16767000	USD
CY2016	krc	Preferred Stockholders And Unitholders Dividends And Distributions Declared But Not Paid PreferredStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid	1656000	USD
CY2017	dei	Entity Central Index Key EntityCentralIndexKey	0001025996
CY2017	krc	Preferred Stockholders And Unitholders Dividends And Distributions Declared But Not Paid PreferredStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid	0	USD
CY2018Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	98721228	shares
CY2017	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2017	dei	Entity Registrant Name EntityRegistrantName	KILROY REALTY CORP
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CY2016Q4	krc	Allowance For Deferred Rent Receivables AllowanceForDeferredRentReceivables	1524000	USD
CY2016	krc	Tenant Improvements Funded Directly By Tenants To Third Parties TenantImprovementsFundedDirectlyByTenantsToThirdParties	18050000	USD
CY2017Q4	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	19912000	USD
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CY2016Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	1712000	USD
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	2309000	USD
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CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	193418000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	57649000	USD
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CY2017	us-gaap	Depreciation Nonproduction DepreciationNonproduction	4024000	USD
CY2016Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	222306000	USD
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CY2017Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	27200000	USD
	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y11M
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CY2016Q4	us-gaap	Common Stock Value CommonStockValue	932000	USD
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CY2016Q4	us-gaap	Minority Interest In Operating Partnerships MinorityInterestInOperatingPartnerships	85590000	USD
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CY2017	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	11500000	USD
CY2016	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	8875000	USD
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CY2016	us-gaap	Payments To Acquire Commercial Real Estate PaymentsToAcquireCommercialRealEstate	393767000	USD
CY2017	us-gaap	Payments To Acquire Commercial Real Estate PaymentsToAcquireCommercialRealEstate	0	USD
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CY2017Q4	us-gaap	Other Commitment OtherCommitment	696100000	USD
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CY2016	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	305000000	USD
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CY2016	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	74140000	USD
CY2015Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	696000	USD
CY2016Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	56711000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	9149000	USD
CY2016Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-107997000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	326058000	USD
CY2016	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	0	USD
CY2016	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	453449000	USD
CY2017	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	182492000	USD
CY2015	krc	Net Income Loss Availableto Common Stockholders Basicand Diluted NetIncomeLossAvailabletoCommonStockholdersBasicandDiluted	219197000	USD
CY2016	krc	Net Income Loss Availableto Common Stockholders Basicand Diluted NetIncomeLossAvailabletoCommonStockholdersBasicandDiluted	276699000	USD
CY2017	krc	Net Income Loss Availableto Common Stockholders Basicand Diluted NetIncomeLossAvailabletoCommonStockholdersBasicandDiluted	149274000	USD
CY2015	krc	Noncash Amortization Of Deferred Revenue Related To Tenant Funded Tenant Improvements NoncashAmortizationOfDeferredRevenueRelatedToTenantFundedTenantImprovements	13338000	USD
CY2016Q4	krc	Numberof Operating Properties Acquired NumberofOperatingPropertiesAcquired	7
CY2017Q4	krc	Numberof Operating Properties Acquired NumberofOperatingPropertiesAcquired	0
CY2017	krc	Period For Ground Lease Rentals Adjustment PeriodForGroundLeaseRentalsAdjustment	P5Y
CY2015	krc	Preferred Stockholders And Unitholders Dividends And Distributions Declared But Not Paid PreferredStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid	1656000	USD
CY2015Q3	krc	Proceedsfrom Issuanceof Commonstocknet ProceedsfromIssuanceofCommonstocknet	249600000	USD
CY2015	krc	Provision For Doubtful Accounts Including Discontinued Operations ProvisionForDoubtfulAccountsIncludingDiscontinuedOperations	545000	USD
CY2017	krc	Redeemable Preferred Stock Value Including Distributions In Excess Of Earnings RedeemablePreferredStockValueIncludingDistributionsInExcessOfEarnings	200000000	USD
CY2017	krc	Reit Annual Taxable Income Distribution Requirement Percentage ReitAnnualTaxableIncomeDistributionRequirementPercentage	0.90
CY2015	krc	Releaseof Holdback Fundsto Third Party ReleaseofHoldbackFundstoThirdParty	9279000	USD
CY2016	krc	Releaseof Holdback Fundsto Third Party ReleaseofHoldbackFundstoThirdParty	0	USD
CY2017	krc	Releaseof Holdback Fundsto Third Party ReleaseofHoldbackFundstoThirdParty	0	USD
CY2015	krc	Sec Schedule Iii Real Estate Accumulated Depreciation Deductions Assets Heldfor Sale SECScheduleIIIRealEstateAccumulatedDepreciationDeductionsAssetsHeldforSale	46191000	USD
CY2016	krc	Sec Schedule Iii Real Estate Accumulated Depreciation Deductions Assets Heldfor Sale SECScheduleIIIRealEstateAccumulatedDepreciationDeductionsAssetsHeldforSale	3900000	USD
CY2017	krc	Sec Schedule Iii Real Estate Accumulated Depreciation Deductions Assets Heldfor Sale SECScheduleIIIRealEstateAccumulatedDepreciationDeductionsAssetsHeldforSale	0	USD
CY2015	krc	Sec Schedule Iii Real Estate Accumulated Depreciation Period Decrease SECScheduleIIIRealEstateAccumulatedDepreciationPeriodDecrease	112947000	USD
CY2016	krc	Sec Schedule Iii Real Estate Accumulated Depreciation Period Decrease SECScheduleIIIRealEstateAccumulatedDepreciationPeriodDecrease	26371000	USD
CY2017	krc	Sec Schedule Iii Real Estate Accumulated Depreciation Period Decrease SECScheduleIIIRealEstateAccumulatedDepreciationPeriodDecrease	66206000	USD
CY2015	krc	Sec Schedule Iii Real Estate Accumulated Depreciation Period Increase SECScheduleIIIRealEstateAccumulatedDepreciationPeriodIncrease	159524000	USD
CY2016	krc	Sec Schedule Iii Real Estate Accumulated Depreciation Period Increase SECScheduleIIIRealEstateAccumulatedDepreciationPeriodIncrease	171983000	USD
CY2017	krc	Sec Schedule Iii Real Estate Accumulated Depreciation Period Increase SECScheduleIIIRealEstateAccumulatedDepreciationPeriodIncrease	190515000	USD
CY2015	krc	Sec Schedule Iii Real Estate Deductions Properties Heldfor Sale SECScheduleIIIRealEstateDeductionsPropertiesHeldforSale	160074000	USD
CY2016	krc	Sec Schedule Iii Real Estate Deductions Properties Heldfor Sale SECScheduleIIIRealEstateDeductionsPropertiesHeldforSale	13193000	USD
CY2017	krc	Sec Schedule Iii Real Estate Deductions Properties Heldfor Sale SECScheduleIIIRealEstateDeductionsPropertiesHeldforSale	0	USD
CY2015	krc	Sec Schedule Iii Real Estate Period Decrease SECScheduleIIIRealEstatePeriodDecrease	405320000	USD
CY2016	krc	Sec Schedule Iii Real Estate Period Decrease SECScheduleIIIRealEstatePeriodDecrease	115185000	USD
CY2017	krc	Sec Schedule Iii Real Estate Period Decrease SECScheduleIIIRealEstatePeriodDecrease	196745000	USD
CY2015	krc	Sec Schedule Iii Real Estate Period Increase SECScheduleIIIRealEstatePeriodIncrease	675534000	USD
CY2016	krc	Sec Schedule Iii Real Estate Period Increase SECScheduleIIIRealEstatePeriodIncrease	847793000	USD
CY2017	krc	Sec Schedule Iii Real Estate Period Increase SECScheduleIIIRealEstatePeriodIncrease	553768000	USD
CY2015	krc	Tenant Improvements Funded Directly By Tenants To Third Parties TenantImprovementsFundedDirectlyByTenantsToThirdParties	13387000	USD
CY2016Q4	krc	Variable Interest Entity Consolidated Carrying Amounts Real Estate Assetsnet VariableInterestEntityConsolidatedCarryingAmountsRealEstateAssetsnet	211755000	USD
CY2017Q4	krc	Variable Interest Entity Consolidated Carrying Amounts Real Estate Assetsnet VariableInterestEntityConsolidatedCarryingAmountsRealEstateAssetsnet	187254000	USD
CY2015Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	13460000	USD
CY2017Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	16926000	USD
CY2016Q4	us-gaap	Accrued Environmental Loss Contingencies Noncurrent AccruedEnvironmentalLossContingenciesNoncurrent	25100000	USD
CY2017Q4	us-gaap	Accrued Environmental Loss Contingencies Noncurrent AccruedEnvironmentalLossContingenciesNoncurrent	28300000	USD
CY2015	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	7081000	USD
CY2017Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	249637000	USD
CY2017Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	16926000	USD
CY2016Q4	krc	Undeveloped Land And Construction In Progress UndevelopedLandAndConstructionInProgress	1013533000	USD
CY2016	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	8875000	USD
CY2017Q4	us-gaap	Secured Debt SecuredDebt	340800000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	21064000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	19046000	USD
CY2016	us-gaap	Straight Line Rent StraightLineRent	29629000	USD
CY2017	us-gaap	Straight Line Rent StraightLineRent	33275000	USD
CY2016Q4	us-gaap	Trading Securities TradingSecurities	14773000	USD
CY2017Q4	us-gaap	Trading Securities TradingSecurities	20674000	USD
CY2016Q4	us-gaap	Unsecured Debt UnsecuredDebt	1847351000	USD
CY2017Q4	us-gaap	Unsecured Debt UnsecuredDebt	2006263000	USD
CY2016Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Assets VariableInterestEntityConsolidatedCarryingAmountAssets	654300000	USD
CY2016Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Liabilities VariableInterestEntityConsolidatedCarryingAmountLiabilities	166100000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-122685000	USD
CY2016Q4	us-gaap	Secured Debt SecuredDebt	472772000	USD
CY2016	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	26600000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	26300000	USD
CY2015	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-8449000	USD
CY2017	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1200000	USD
CY2017	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	12986000	USD
CY2015	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	0	USD
CY2016	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	0	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	0	USD
CY2015	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	18869000	USD
CY2016	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	26624000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	26319000	USD
CY2015	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	18900000	USD
CY2015	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	1853000	USD
CY2015	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	33947000	USD
CY2016	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	33057000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	41704000	USD
CY2016Q4	us-gaap	Assets Assets	6706633000	USD
CY2017Q4	us-gaap	Assets Assets	6802838000	USD
CY2016Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation AssetsOfDisposalGroupIncludingDiscontinuedOperation	9417000	USD
CY2017Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation AssetsOfDisposalGroupIncludingDiscontinuedOperation	0	USD
CY2016	us-gaap	Below Market Lease Acquired BelowMarketLeaseAcquired	18100000	USD
CY2015	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	497000	USD
CY2016	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1902000	USD
CY2017	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
CY2016	us-gaap	Business Combination Pro Forma Information Earnings Or Loss Of Acquiree Since Acquisition Date Actual BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual	1700000	USD
CY2016	us-gaap	Business Combination Pro Forma Information Revenue Of Acquiree Since Acquisition Date Actual BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual	5200000	USD
CY2016Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets	412940000	USD
CY2016Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Buildings BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings	259301000	USD
CY2016Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities Accounts Payable BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable	1122000	USD
CY2016Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Intangibles BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles	33529000	USD
CY2016Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Land BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand	120110000	USD
CY2016Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities	19172000	USD
CY2016Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired Goodwill And Liabilities Assumed Net BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet	393768000	USD
CY2015	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	109715000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	23781000	USD
CY2014Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	98966000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	66798000	USD
CY2015	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-41762000	USD
CY2016	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	192925000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-183331000	USD
CY2017Q4	us-gaap	Cash Fdic Insured Amount CashFDICInsuredAmount	250000	USD
CY2016Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2017Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.313
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.587
CY2016Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.90
CY2017Q1	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	179308000	USD
CY2016Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.90
CY2015	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.40
CY2016Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.375
CY2017Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.375
CY2017	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.65
CY2015Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	3733766	shares
CY2017Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	4427500	shares
CY2016Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	93219439	shares
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	98620333	shares
CY2015	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	1223000	USD
CY2015	us-gaap	Cost Of Real Estate Revenue CostOfRealEstateRevenue	105378000	USD
CY2016	us-gaap	Cost Of Real Estate Revenue CostOfRealEstateRevenue	113932000	USD
CY2017	us-gaap	Cost Of Real Estate Revenue CostOfRealEstateRevenue	129971000	USD
CY2017Q4	us-gaap	Debt Instrument Unamortized Premium DebtInstrumentUnamortizedPremium	2600000	USD
CY2016Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	14700000	USD
CY2017Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	20600000	USD
CY2015	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1100000	USD
CY2016	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1200000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1300000	USD
CY2017	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.1
CY2017	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.6
CY2015	us-gaap	Depreciation And Amortization DepreciationAndAmortization	204294000	USD
CY2016	us-gaap	Depreciation And Amortization DepreciationAndAmortization	217234000	USD
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	245886000	USD
CY2015	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	201482000	USD
CY2015	us-gaap	Depreciation Nonproduction DepreciationNonproduction	2812000	USD
CY2015	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	17116000	USD
CY2016	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	-295000	USD
CY2017	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	449000	USD
CY2015	us-gaap	Dividends Common Stock DividendsCommonStock	130628000	USD
CY2016	us-gaap	Dividends Common Stock DividendsCommonStock	326585000	USD
CY2017	us-gaap	Dividends Common Stock DividendsCommonStock	169364000	USD
CY2015	us-gaap	Dividends Preferred Stock DividendsPreferredStock	13250000	USD
CY2016	us-gaap	Dividends Preferred Stock DividendsPreferredStock	13250000	USD
CY2017	us-gaap	Dividends Preferred Stock DividendsPreferredStock	5774000	USD
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.44
CY2016Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.85
CY2016Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.32
CY2016Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.54
CY2016Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.29
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.00
CY2017Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.27
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.30
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.67
CY2017Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	246391000	USD
CY2016	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2017	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-5312000	USD
CY2015	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	17116000	USD
CY2016	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	-295000	USD
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.28
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.52
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.42
CY2016Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.84
CY2016Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.31
CY2016Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.54
CY2016Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.29
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.97
CY2017Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.26
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.30
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.67
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.28
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.51
CY2015	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	3300000	USD
CY2016	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	5600000	USD
CY2017	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	7300000	USD
CY2015	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	109950000	USD
CY2016	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	164302000	USD
CY2017	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	39507000	USD
CY2015	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2017	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	449000	USD
CY2015	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	48265000	USD
CY2016	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	57029000	USD
CY2017	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	60581000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	234081000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	293788000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	164612000	USD
CY2015	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	8085000	USD
CY2015	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	12496000	USD
CY2015Q1	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-59200000	USD
CY2015	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-65200000	USD
CY2016	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	56000000	USD
CY2015	us-gaap	Interest Expense InterestExpense	57682000	USD
CY2016	us-gaap	Interest Expense InterestExpense	55803000	USD
CY2017	us-gaap	Interest Expense InterestExpense	66040000	USD
CY2015	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	50923000	USD
CY2016	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	47675000	USD
CY2017	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	44757000	USD
CY2015	us-gaap	Interest Paid Net InterestPaidNet	54747000	USD
CY2015	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	3096000	USD
CY2016	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	3439000	USD
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	6337000	USD
CY2016Q4	us-gaap	Liabilities Liabilities	2947316000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	2842522000	USD
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6706633000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6802838000	USD
CY2016Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation	56000	USD
CY2017Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation	0	USD
CY2015	us-gaap	Marketable Securities Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments	-269000	USD
CY2016	us-gaap	Marketable Securities Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments	1130000	USD
CY2017	us-gaap	Marketable Securities Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments	3023000	USD
CY2016Q4	us-gaap	Minority Interest MinorityInterest	216322000	USD
CY2017Q4	us-gaap	Minority Interest MinorityInterest	259523000	USD
CY2016	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	3615000	USD
CY2017	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	16542000	USD
CY2016Q4	us-gaap	Minority Interest Ownership Percentage By Noncontrolling Owners MinorityInterestOwnershipPercentageByNoncontrollingOwners	0.025
CY2016Q4	us-gaap	Minority Interest Ownership Percentage By Parent MinorityInterestOwnershipPercentageByParent	0.975
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	23471000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	427291000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-171241000	USD
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-337241000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-579420000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-359102000	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	272008000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	345054000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	347012000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	234081000	USD
CY2016Q1	us-gaap	Net Income Loss NetIncomeLoss	174308000	USD
CY2016Q2	us-gaap	Net Income Loss NetIncomeLoss	32847000	USD
CY2016Q3	us-gaap	Net Income Loss NetIncomeLoss	53895000	USD
CY2016Q4	us-gaap	Net Income Loss NetIncomeLoss	32738000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	293788000	USD
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	33525000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	31448000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	71110000	USD
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	28529000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	164612000	USD
CY2015	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	4523000	USD
CY2016	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	10010000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	16003000	USD
CY2015	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	220831000	USD
CY2016Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	170995000	USD
CY2016Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	29535000	USD
CY2016Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	50582000	USD
CY2016Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	29426000	USD
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	280538000	USD
CY2017Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	26329000	USD
CY2017Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	29833000	USD
CY2017Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	66558000	USD
CY2017Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	28529000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	151249000	USD
CY2017Q4	us-gaap	Net Rentable Area NetRentableArea	13720597	sqft
CY2015	us-gaap	Noncash Or Part Noncash Acquisition Other Liabilities Assumed1 NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1	6254000	USD
CY2016	us-gaap	Noncash Or Part Noncash Acquisition Other Liabilities Assumed1 NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1	5863000	USD
CY2017	us-gaap	Noncash Or Part Noncash Acquisition Other Liabilities Assumed1 NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1	1443000	USD
CY2015	us-gaap	Noncontrolling Interest In Net Income Loss Operating Partnerships Redeemable NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable	4339000	USD
CY2016	us-gaap	Noncontrolling Interest In Net Income Loss Operating Partnerships Redeemable NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable	6635000	USD
CY2017	us-gaap	Noncontrolling Interest In Net Income Loss Operating Partnerships Redeemable NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable	3223000	USD
CY2015	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	474000	USD
CY2016	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	453449000	USD
CY2017	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	54604000	USD
CY2015	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-57439000	USD
CY2016	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-54039000	USD
CY2017	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-65849000	USD
CY2015	us-gaap	Notes Assumed1 NotesAssumed1	0	USD
CY2016	us-gaap	Notes Assumed1 NotesAssumed1	1350000	USD
CY2017	us-gaap	Notes Assumed1 NotesAssumed1	0	USD
CY2015	us-gaap	Operating Expenses OperatingExpenses	412298000	USD
CY2016	us-gaap	Operating Expenses OperatingExpenses	448742000	USD
CY2017	us-gaap	Operating Expenses OperatingExpenses	512493000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	251418000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	4957000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	4957000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	4957000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	4957000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	4957000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	226633000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Receivable OperatingLeasesFutureMinimumPaymentsReceivable	5170492000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Current OperatingLeasesFutureMinimumPaymentsReceivableCurrent	555393000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Five Years OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears	476146000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Four Years OperatingLeasesFutureMinimumPaymentsReceivableInFourYears	497566000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Three Years OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears	525637000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Two Years OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears	546587000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Thereafter OperatingLeasesFutureMinimumPaymentsReceivableThereafter	2569163000	USD
CY2015	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	525355000	USD
CY2016	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	574413000	USD
CY2017	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	633896000	USD
CY2015	us-gaap	Other Real Estate Revenue OtherRealEstateRevenue	2146000	USD
CY2016	us-gaap	Other Real Estate Revenue OtherRealEstateRevenue	7080000	USD
CY2017	us-gaap	Other Real Estate Revenue OtherRealEstateRevenue	8546000	USD
CY2015	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	1634000	USD
CY2016	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	3839000	USD
CY2017	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	1975000	USD
CY2015	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	99557000	USD
CY2015	us-gaap	Payments For Proceeds From Deposits On Real Estate Acquisitions PaymentsForProceedsFromDepositsOnRealEstateAcquisitions	-1998000	USD
CY2015	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
CY2017Q1	us-gaap	Payments Of Capital Distribution PaymentsOfCapitalDistribution	184300000	USD
CY2017	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2015	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	397776000	USD
CY2015	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	250000000	USD
CY2015	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	474000	USD
CY2015	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	319639000	USD
CY2015	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	14573000	USD
CY2015	us-gaap	Profit Loss ProfitLoss	238604000	USD
CY2016Q1	us-gaap	Profit Loss ProfitLoss	178113000	USD
CY2016Q2	us-gaap	Profit Loss ProfitLoss	33892000	USD
CY2017Q1	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	36400000	USD
CY2015	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	126839000	USD
CY2015	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	4814000	USD
CY2015	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	7081000	USD
CY2015	us-gaap	Payments To Acquire Commercial Real Estate PaymentsToAcquireCommercialRealEstate	0	USD
CY2015	us-gaap	Payments To Acquire Other Real Estate PaymentsToAcquireOtherRealEstate	148352000	USD
CY2016	us-gaap	Payments To Acquire Other Real Estate PaymentsToAcquireOtherRealEstate	33513000	USD
CY2017	us-gaap	Payments To Acquire Other Real Estate PaymentsToAcquireOtherRealEstate	19829000	USD
CY2015	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	407969000	USD
CY2015	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	USD
CY2015	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	13250000	USD
CY2016Q1	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	3313000	USD
CY2016Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	3312000	USD
CY2016Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	3313000	USD
CY2016Q4	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	3312000	USD
CY2016	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	13250000	USD
CY2017Q1	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	7196000	USD
CY2017Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	1615000	USD
CY2017Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	4552000	USD
CY2017Q4	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
CY2017	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	13363000	USD
CY2015	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	0	USD
CY2016	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	0	USD
CY2017	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	7589000	USD
CY2017Q1	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	308800000	USD
CY2015	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	387398000	USD
CY2015	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	0	USD
CY2016	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	170000000	USD
CY2017	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	0	USD
CY2016Q3	us-gaap	Profit Loss ProfitLoss	56375000	USD
CY2016Q4	us-gaap	Profit Loss ProfitLoss	35418000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	303798000	USD
CY2017Q1	us-gaap	Profit Loss ProfitLoss	37281000	USD
CY2017Q2	us-gaap	Profit Loss ProfitLoss	35306000	USD
CY2017Q4	us-gaap	Prepaid Expense Current And Noncurrent PrepaidExpenseCurrentAndNoncurrent	55108000	USD
CY2017Q3	us-gaap	Profit Loss ProfitLoss	75488000	USD
CY2017	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-8528000	USD
CY2016	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	2720000	USD
CY2017	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	3247000	USD
CY2016	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	8893000	USD
CY2017	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	10939000	USD
CY2016	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	31117000	USD
CY2015	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	139123000	USD
CY2016	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	460957000	USD
CY2017	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	19829000	USD
CY2015	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	13262000	USD
CY2016	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	33792000	USD
CY2017Q4	us-gaap	Profit Loss ProfitLoss	32540000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	180615000	USD
CY2015	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	545000	USD
CY2016	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	0	USD
CY2017	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	3269000	USD
CY2014Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	947664000	USD
CY2015Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	994241000	USD
CY2016Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1139853000	USD
CY2017Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1264162000	USD
CY2015	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	153000	USD
CY2016	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	0	USD
CY2017	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	0	USD
CY2015	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	66603000	USD
CY2016	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	22471000	USD
CY2017	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	66206000	USD
CY2017Q4	us-gaap	Real Estate And Accumulated Depreciation Amount Of Encumbrances RealEstateAndAccumulatedDepreciationAmountOfEncumbrances	339395000	USD
CY2017Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements	5649364000	USD
CY2017Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Land RealEstateAndAccumulatedDepreciationCarryingAmountOfLand	1768413000	USD
CY2017Q4	us-gaap	Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements	2936888000	USD
CY2017Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements	2754699000	USD
CY2017Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Land RealEstateAndAccumulatedDepreciationInitialCostOfLand	1726190000	USD
CY2015	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	231984000	USD
CY2016	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	68200000	USD
CY2017	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	191610000	USD
CY2017Q4	us-gaap	Real Estate Federal Income Tax Basis RealEstateFederalIncomeTaxBasis	6300000000	USD
CY2017Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	7417777000	USD
CY2015	us-gaap	Real Estate Improvements RealEstateImprovements	536411000	USD
CY2016	us-gaap	Real Estate Improvements RealEstateImprovements	386836000	USD
CY2017	us-gaap	Real Estate Improvements RealEstateImprovements	533939000	USD
CY2014Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	6057932000	USD
CY2015Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	6328146000	USD
CY2016Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	7060754000	USD
CY2017Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	7417777000	USD
CY2016Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	5920901000	USD
CY2017Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	6153615000	USD
CY2017	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	5135000	USD
CY2015	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	581275000	USD
CY2016Q1	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	145446000	USD
CY2016Q2	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	160133000	USD
CY2017Q2	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	180598000	USD
CY2016Q3	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	168348000	USD
CY2016Q4	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	168645000	USD
CY2016	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	642572000	USD
CY2017Q3	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	181534000	USD
CY2017Q4	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	177561000	USD
CY2017	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	719001000	USD
CY2015	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	50223000	USD
CY2016	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	55206000	USD
CY2017	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	66449000	USD
CY2015	us-gaap	Redeemable Preferred Stock Dividends RedeemablePreferredStockDividends	13250000	USD
CY2016	us-gaap	Redeemable Preferred Stock Dividends RedeemablePreferredStockDividends	13250000	USD
CY2017	us-gaap	Redeemable Preferred Stock Dividends RedeemablePreferredStockDividends	5774000	USD
CY2015	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	390000000	USD
CY2015	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	159766000	USD
CY2015	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	325000000	USD
CY2016	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	0	USD
CY2017	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	519024000	USD
CY2016Q4	us-gaap	Restricted Cash RestrictedCash	48400000	USD
CY2017Q4	us-gaap	Restricted Cash RestrictedCash	0	USD
CY2014Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	75185000	USD
CY2015	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	159524000	USD
CY2016	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	171983000	USD
CY2017	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	190515000	USD
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	15537000	USD
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	2700000	USD
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	2500000	USD
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	2400000	USD
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	298000	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	267000	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	261000	shares
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P4Y1M
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P4Y1M
CY2015Q3	us-gaap	Shares Issued Price Per Share SharesIssuedPricePerShare	66.19
CY2017Q1	us-gaap	Shares Issued Price Per Share SharesIssuedPricePerShare	1.90
CY2015	us-gaap	Stock Issued1 StockIssued1	0	USD
CY2016	us-gaap	Stock Issued1 StockIssued1	48033000	USD
CY2017	us-gaap	Stock Issued1 StockIssued1	0	USD
CY2016	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	48033000	USD
CY2015	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	0	USD
CY2016	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	0	USD
CY2017	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	0	USD
CY2015	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	387398000	USD
CY2016	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	31117000	USD
CY2017	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	326058000	USD
CY2015	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	-1000	USD
CY2016	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	USD
CY2017	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	130371000	USD
CY2017	dei	Amendment Flag AmendmentFlag	false
CY2016Q4	krc	Deferred Rent Receivables Gross DeferredRentReceivablesGross	220501000	USD
CY2017	krc	Tenant Improvements Funded Directly By Tenants To Third Parties TenantImprovementsFundedDirectlyByTenantsToThirdParties	15314000	USD
CY2016	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	3.375
CY2016	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	5214000	USD
CY2016Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	4938250000	USD
CY2017Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	4908797000	USD
CY2016Q4	us-gaap	Land And Land Improvements LandAndLandImprovements	1108971000	USD
CY2017Q4	us-gaap	Land And Land Improvements LandAndLandImprovements	1076172000	USD
CY2016Q4	us-gaap	Noncontrolling Interest In Variable Interest Entity NoncontrollingInterestInVariableInterestEntity	130732000	USD
CY2017	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	88425000	USD
CY2016	us-gaap	Payments For Proceeds From Deposits On Real Estate Acquisitions PaymentsForProceedsFromDepositsOnRealEstateAcquisitions	-1902000	USD
CY2017	us-gaap	Payments For Proceeds From Deposits On Real Estate Acquisitions PaymentsForProceedsFromDepositsOnRealEstateAcquisitions	35900000	USD
CY2016	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
CY2016	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	3615000	USD
CY2017	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	16542000	USD
CY2016Q4	us-gaap	Prepaid Expense Current And Noncurrent PrepaidExpenseCurrentAndNoncurrent	10774000	USD
CY2017Q4	us-gaap	Redeemable Noncontrolling Interest Equity Common Fair Value RedeemableNoncontrollingInterestEquityCommonFairValue	154500000	USD
CY2017	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	USD
CY2015	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1692000	USD
CY2016	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1827000	USD
CY2017	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	5890000	USD
CY2015	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	14573000	USD
CY2016	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	12208000	USD
CY2017	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	12179000	USD
CY2016Q1	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	4000000	shares
CY2017Q4	us-gaap	Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased	4935826	shares
CY2016Q1	us-gaap	Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased	4988025	shares
CY2016Q1	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	52199	shares
CY2016Q1	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	2900000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	3542995000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	3700793000	USD
CY2014Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2723936000	USD
CY2015Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3234586000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3759317000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3960316000	USD
CY2015	us-gaap	Straight Line Rent StraightLineRent	44383000	USD
CY2015	us-gaap	Tenant Reimbursements TenantReimbursements	53774000	USD
CY2016	us-gaap	Tenant Reimbursements TenantReimbursements	61079000	USD
CY2017	us-gaap	Tenant Reimbursements TenantReimbursements	76559000	USD
CY2015	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	0	USD
CY2016	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	2322000	USD
CY2017	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	0	USD
CY2016Q1	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	55.45
CY2017Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Assets VariableInterestEntityConsolidatedCarryingAmountAssets	426500000	USD
CY2017Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Liabilities VariableInterestEntityConsolidatedCarryingAmountLiabilities	27300000	USD
CY2016	us-gaap	Variable Interest Entity Number Of Entities With Unavailability Of Information VariableInterestEntityNumberOfEntitiesWithUnavailabilityOfInformation	3
CY2017	us-gaap	Variable Interest Entity Number Of Entities With Unavailability Of Information VariableInterestEntityNumberOfEntitiesWithUnavailabilityOfInformation	2
CY2015	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	541679	shares
CY2016	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	680551	shares
CY2017	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	613770	shares
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	90395775	shares
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	93023034	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	98727331	shares
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	89854096	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	92342483	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	98113561	shares
CY2017	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Concentration of Credit Risk</font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">All of our properties and development and redevelopment projects are owned and all of our business is currently conducted in the state of California with the exception of the ownership and operation of </font><font style="font-family:inherit;font-size:10pt;">twelve</font><font style="font-family:inherit;font-size:10pt;"> office properties and </font><font style="font-family:inherit;font-size:10pt;">one</font><font style="font-family:inherit;font-size:10pt;"> development project under construction located in the state of Washington. The ability of tenants to honor the terms of their leases is dependent upon the economic, regulatory, and social factors affecting the communities in which our tenants operate. </font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">As of </font><font style="font-family:inherit;font-size:10pt;">December 31, 2017</font><font style="font-family:inherit;font-size:10pt;">, our </font><font style="font-family:inherit;font-size:10pt;">15</font><font style="font-family:inherit;font-size:10pt;"> largest tenants represented approximately </font><font style="font-family:inherit;font-size:10pt;">40.3%</font><font style="font-family:inherit;font-size:10pt;"> of total annualized base rental revenues, of which </font><font style="font-family:inherit;font-size:10pt;">5.0%</font><font style="font-family:inherit;font-size:10pt;"> was attributable to our largest tenant. </font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We have deposited cash with financial institutions that is insured by the Federal Deposit Insurance Corporation (“FDIC”) up to </font><font style="font-family:inherit;font-size:10pt;">$250,000</font><font style="font-family:inherit;font-size:10pt;"> per institution. As of </font><font style="font-family:inherit;font-size:10pt;">December 31, 2017</font><font style="font-family:inherit;font-size:10pt;"> and </font><font style="font-family:inherit;font-size:10pt;">2016</font><font style="font-family:inherit;font-size:10pt;">, we had cash accounts in excess of FDIC insured limits. </font></div></div>
CY2017	us-gaap	Revenue Recognition Leases Operating RevenueRecognitionLeasesOperating	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Revenue Recognition</font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We recognize revenue from rent, tenant reimbursements, parking and other revenue once all of the following criteria are met: (i) the agreement has been fully executed and delivered, (ii) services have been rendered, (iii) the amount is fixed or determinable and (iv) the collectability of the amount is reasonably assured.</font></div><div style="line-height:120%;padding-left:4px;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Minimum annual rental revenues are recognized in rental revenues on a straight-line basis over the non-cancellable term of the related lease. Rental revenue recognition commences when the tenant takes possession or controls the physical use of the leased space. In order for the tenant to take possession, the leased space must be substantially complete and ready for its intended use. In order to determine whether the leased space is substantially ready for its intended use, we begin by determining whether the Company or the tenant owns the tenant improvements. When we conclude that the Company is the owner of tenant improvements, rental revenue recognition begins when the tenant takes possession of the finished space, which is generally when Company owned tenant improvements are substantially complete. In certain instances, when we conclude that the Company is not the owner (the tenant is the owner) of tenant improvements, rental revenue recognition begins when the tenant takes possession of or controls the space.</font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">When we conclude that the Company is the owner of tenant improvements, we record the cost to construct the tenant improvements, including costs paid for or reimbursed by the tenants, as a capital asset. For these tenant improvements, we record the amount funded by or reimbursed by the tenants as deferred revenue, which is amortized on a straight-line basis as additional rental income over the term of the related lease.</font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">When we conclude that the tenant is the owner of tenant improvements for accounting purposes, we record our contribution towards those improvements as a lease incentive, which is included in deferred leasing costs and acquisition-related intangible assets, net on our consolidated balance sheets and amortized as a reduction to rental income on a straight-line basis over the term of the lease.</font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">For residential properties, we commence revenue recognition upon occupancy of the units by the tenants. Residential rental revenue is recognized on a straight-line basis over the term of the related lease, net of any concessions.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Tenant Reimbursements</font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Reimbursements from tenants, consisting of amounts due from tenants for common area maintenance, real estate taxes and other recoverable costs, are recognized as revenue in the period the recoverable costs are incurred. Tenant reimbursements are recognized and recorded on a gross basis, as we are generally the primary obligor with respect to purchasing goods and services from third-party suppliers, have discretion in selecting the supplier, and have credit risk.</font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Other Property Income</font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Other property income primarily includes amounts recorded in connection with lease terminations, tenant bankruptcy settlement payments, broken deal income and property damage settlement related payments. Lease termination fees are amortized over the remaining lease term, if applicable. If there is no remaining lease term, they are recognized when received and realized. Other property income also includes miscellaneous income from tenants, such as fees related to the restoration of leased premises to their original condition and fees for late rental payments.</font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></div>
CY2017	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Use of Estimates</font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reported periods. Actual results could differ from those estimates.</font></div></div>

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2016 Q4 Form 10-K Financial Statement

#000102599618000107 Filed on February 13, 2018

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$KRC Kilroy Realty Corp Stock $krc

2016 Q4 Form 10-K Financial Statement

#000102599618000107 Filed on February 13, 2018

Income Statement

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Files In Submission

$KRC
Kilroy Realty Corp Stock $krc